Improper Neutralization of Formula Elements in a CSV File in kimai2 - CVE-2026-42267
Published: April 27, 2026
Vulnerability identifier: #VU128005
CSH Severity: Medium
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-42267
CWE-ID: CWE-1236
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the formula injection issue within tag names in XLSX export. A remote user can inject a malicious spreadsheet formula and exfiltrate or modificate data on the system.
Affected software
kimai2
How to mitigate CVE-2026-42267
Install updates from vendor's website.
kimai2 - update to 2.54.0